128171282273 has 8 divisors (see below), whose sum is σ = 131051112192. Its totient is φ = 125297818336.

The previous prime is 128171282249. The next prime is 128171282287. The reversal of 128171282273 is 372282171821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128171282273 - 2⁸ = 128171282017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128171222273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550765 + ... + 1631322.

It is an arithmetic number, because the mean of its divisors is an integer number (16381389024).

Almost surely, 2^128171282273 is an apocalyptic number.

It is an amenable number.

128171282273 is a deficient number, since it is larger than the sum of its proper divisors (2879829919).

128171282273 is an equidigital number, since it uses as much as digits as its factorization.

128171282273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182991.

The product of its digits is 150528, while the sum is 44.

The spelling of 128171282273 in words is "one hundred twenty-eight billion, one hundred seventy-one million, two hundred eighty-two thousand, two hundred seventy-three".